In the 10,000 years since their creation, many Space Marines have been declared as renegades from the Imperium. By far the most infamous and numerous of these are the Chaos Space Marines, however there are some forces who are considered renegades against the Imperium for reasons other than the worship Chaos (although it should be noted that many such Chapters later succumb to worship of the Ruinous Powers).

It should be noted that some Chapters have changed their names during their history and may be represented on this list more than once under different titles.